Valee

• Nov 12th, 2007

 

You can able check the array contains a particular value is exist or not? For example see the below code.

@array = (1,2,3,4,5,6,7,8,100,200,500); # array
$result = grep(/600/, @array); # checking the value.
print $result; # the result will be 0. (if 1 then it contains the value)

wow_suraj

 Profile Answers by wow_suraj 

• May 2nd, 2008

 

"grep" here is used for same reasons like used in UNIX i.e.  to match certain value.

contactparagm

 Profile Answers by contactparagm 

• Dec 3rd, 2010

 

"grep" is a built function which extract all elements in ARRAY, matched by regex/pattern given as argument for grep and return the resultant elements in an array.

perl syntax: 

      ARRAY = grep PATTERN,  ARRAY

example one liner:-

perl -e '@a = qw (apple ball cat duck egg fish); print join " ", grep (/a/, @a) ; ' 

vasu

• Dec 19th, 2011

 

Code
#!/usr/bin/perl


use strict;


use warnings;


my @myNames = (Jacob, Michael, Joshua, Matthew, Alexander, Andrew);


my  @grepNames = grep(/^m(.*)$/i, @myNames);


foreach my $grepNames (@grepNames) {


        print"the value is :".$grepNames."


";


}